Rotary mop

ABSTRACT

A rotary mop is provided in which an inner rod body is arranged to be coaxial with an outer rod body. The outer rod body is attached with a transmission stem which is provided with a ratchet block. A drive block inserted with the transmission stem is to engage with the ratchet block. A sleeve is assembled in the inner rod body and helical grooves are provided on the peripheral wall of the sleeve for engaging with guiding posts provided on the drive block. A mop section is mounted on the bottom of the sleeve. In this manner, the transmission stem can move the drive block to rotate the sleeve when the outer rod body is repeatedly pushed and pulled, and the mop section mounted on the bottom of the sleeve can be stably rotated to drain out the water contained in mop strings.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a rotary mop, more particularly to a rotary mop having simple structure and good stability without improper shaking happened in operation.

2. Brief Description of the Prior Art

Mop is a prevalent means to clean hard surface areas such as floor. People firstly clean floors with a broom, then use a mop adsorbed with water to cohere dust, detritus and greasy dirt by the adhesion action of water contained in the mop strings. In turn, the mop strings is dipped in the water bucket or the dirt adhered thereon is washed by water and the water contained in the mop strings is then wrung out. The wiping action of mop is repeatedly conducted for a couple of times such that the floor becomes more and more clean.

However, as the water contained in ordinary mop strings is usually wrung out by hands, it is disadvantageous for users both on hygiene and safety that users might easily suffer from damage if the mop is adhered with sharp stuff like splinters of glass or iron filings, and from contamination of dirt and bacteria which is present on floors and is indirectly transferred from the mop to users' hands or nail seams. If users do not clean their hands after wringing out of mop, there is a risk of getting illness.

In view of the abovementioned disadvantages, the inventor of the present invention has proposed the novel rotary mop of the present invention according to the research and improvement conducted on conventional structure and based on profound experience in R&D and manufacturing in relevant field.

SUMMARY OF INVENTION

The present invention relates to a rotary mop, the main object of this invention is to provide a rotary mop having simple structure and good stability without improper shaking happened in operation.

In order to achieve the above object, the rotary mop of the present invention comprising:

an outer rod body;

an inner rod body arranged to be coaxial with the outer rod body;

a transmission stem assembled in the outer rod body, the upper end of which is attached to the outer rod body, a ratchet block being provided on the transmission stem and one-way ratchet teeth being formed on the bottom surface of the ratchet block;

a sleeve assembled in the inner rod body, at least two helical grooves being formed on the inner wall surface of the sleeve;

a drive block, having a through bore at the center for insert-connection with the transmission stem, one-way ratchet teeth being formed on the upper surface of the drive block for engaging with the one-way ratchet teeth on the bottom surface of the ratchet block, at least two guiding posts being further provided on the peripheral wall of the drive block for engaging with the two helical grooves formed on the inner wall of the sleeve, a baffle piece being attached to the bottom end of the transmission stem for limiting the drive block;

a mop section mounted on the bottom end of the sleeve.

In this manner, the transmission stem can be driven to move the drive block so as to rotate the sleeve when the outer rod body is repeatedly pushed and pulled, and the mop section mounted on the bottom of the sleeve is thus rotated to produce centrifugal force which flings the water contained in the mop strings. As the drive block activated to rotate the sleeve is maintained to be in engagement with the peripheral wall of the sleeve throughout the process, the rotation action of the sleeve can be kept in good stability so as to avoid improper shaking happened in operation.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective exploded view showing the rotary mop of the present invention.

FIG. 2 is a front sectional view showing the rotary mop of the present invention.

FIG. 3 is a top sectional view showing the rotary mop of the present invention.

FIG. 4 is a partial enlarged sectional view showing the locking member of the present invention.

FIG. 5 is a partial enlarged view showing the mop section of the present invention.

FIG. 6 is a using state of the present invention.

FIG. 7 is another using state of the present invention.

FIG. 8 is a view showing the state of locking of the locking member of the present invention.

FIG. 9 is a perspective exploded view showing another embodiment of the rotary mop of the present invention.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENT

The objects, the technical contents and the expected effect of the present invention will become more apparent from the detailed description of the preferred embodiments in conjunction with the accompanying drawings.

Referring to FIGS. 1 and 2, the rotary mop of the present invention is formed by an outer rod body (1), an inner rod body (2), a transmission stem (3), a sleeve (4), a drive block (5), a lock member (6) and a mop section (7).

The outer rod body (1) is a hollow rod body, a stationary block (12) being assembled on the upper end of the hollow portion (11) of outer rod body (1).

The inner rod body (2) is a hollow rod body which is inserted within the hollow portion (11) of the outer rod body (1) to be coaxial therewith, a plug block (22) being assembled in the hollow portion (21) of inner rod body (2) and a through bore (221) being provided at the center of the plug block (22) for traversing of the transmission stem (3).

The transmission stem (3) is assembled within the hollow portion (11) of the outer rod body (1), the upper end of the transmission stem (3) being attached to the stationary block (12) of the outer rod body (1). A ratchet block (31) is further provided on the transmission stem (3) and one-way ratchet teeth (32) are formed on the bottom surface of the ratchet block (31).

The sleeve (4) is disposed within the hollow portion (41) of the inner rod body (2), at least two helical grooves (42) being formed on the inner peripheral wall surface thereof.

As shown in FIG. 3, the drive block (5) has a through bore (53) provided at the center for insert-connection with the transmission stem (3), one-way ratchet teeth (51) being formed on the upper surface of the drive block (5) for engaging with the one-way ratchet teeth (32) on the bottom surface of the ratchet block (31) of the transmission stem (3). At least two guiding posts (52) are further provided on the peripheral wall of the drive block (5) for engaging with the two helical grooves (42) formed on the inner wall surface of the sleeve (4). A baffle piece (33) is attached to the bottom end of the transmission stem (3) for limiting the drive block (5).

The lock member (6) as shown in FIG. 4 has a retaining bush (61) inserted in the bottom edge of the outer rod body (1). A groove (611) provided on the side of the retaining bush (61) is in coincidence with a groove (13) provided on the side of the outer rod body (1). Further, a press lever (62) is pivotally coupled in the groove (611) of the retaining bush (61), and the press lever (62) is formed with an abutment portion (621) located at the end portion of the groove (611) for abutting firmly on the wall surface of the inner rod body (2).

The mop section (7) as shown in FIG. 5 comprises: a coupling rod (71) mounted on the bottom end of the sleeve (4), a disk body (72) pivotally connected to the bottom side of the coupling rod (71) and a mop strings (73) mounted on the bottom of the disk body (72).

In this manner, when mop strings (73) has to be cleaned by water and wrung out water after use, as shown in FIG. 4, the press lever (62) of the lock member (6) is to be released from locking firstly so that the abutment portion (621) of the press lever (62) releases the abutment-locking on the wall surface of the inner rod body (2). Hence, the inner rod body (2) can conduct up-down sliding within the outer rod body (1).

Then referring to FIGS. 2 and 6, user grips the outer rod body (1) with their hands and put the mop strings (73) into the draining tank (81) of bucket (8) and presses the outer rod body (1) downward, then the transmission stem (3) mounted thereon is displaced downwardly such that the one-way ratchet teeth (32) on the bottom surface of the ratchet block (31) of the transmission stem (3) engage with the one-way ratchet teeth (51) on the upper end surface of the drive block (5).

Accompanying with the downward movement of the transmission stem (3) and the outer rod body (1), the drive block (5) engaged with the ratchet block (31) of the transmission stem (3) also moves downwardly. As the guiding posts (52) provided on the peripheral wall of the drive block (5) engage in the helical groove (42) provided on the sleeve (4), the drive block (5) will naturally move along the helical groove (42) of the sleeve (4). At this moment, since the drive block (5) is braked by the ratchet block (31) and thus is unable to rotate, the sleeve (4) is rotated relative to the drive block (5) so that the mop section assembled with the sleeve (4) is rotated simultaneously, and the draining tank (81) is accordingly rotated therewith. In this manner, the water contained in the mop strings (73) can be wrung out by the centrifugal action produced by the rotation.

In turn, as shown in FIG. 7, when user pulls the outer rod body (1) upward, the transmission stem (3) mounted thereon is also displaced upward such that the ratchet block (31) is disengaged from the drive block (5). Additionally, the baffle piece (33) provided on the bottom end of the transmission stem (3) will bring the drive block (5) upward when the transmission stem (3) is pulled upward. Under the state of disengagement from the ratchet block (31), the drive block (5) is rotated in compliance with the helical groove (42) of the sleeve (4) accompanying with upward movement. As the sleeve (4) is immobile at this moment, the drive block (5) can be moved to the upper end position of the sleeve (4) smoothly.

After user pulls the outer rod body (1), the transmission stem (3) and the drive block (5) upward back to their original positions, the outer rod body (1) is pressed down, the ratchet block (31) of the transmission stem (3) again engages with the drive block (5) and thus are moved downward with the outer rod body (1) and the transmission stem (3). The drive block (5) moves in compliance with the helical groove (42) on the sleeve (4) and thus rotates the sleeve (4) such that the mop section (7) mounted on the bottom end of the sleeve (4) is again rotated to wring out the water contained in the mop strings (73) by the centrifugal action produced by the rotation.

In this manner, by repeating the pressing downward and pulling upward actions of the outer rod body (1), draining effect of the water adhered in the mop strings (73) can be achieved. Moreover, as the guiding posts (52) of the drive block (5) maintain its engagement in the helical groove (42) provided on the peripheral wall of the sleeve (4) throughout the process, the rotation of the sleeve (4) can be kept in good stability so as to avoid improper shaking happened in operation.

When a force is applied to pull the press lever (62) of the lock member (6) into lock position, the abutment portion (621) on the end portion of the press lever (62) will abut firmly on the wall surface of the inner rod body (2) so as to become immovable state between the inner rod body (2) and the outer rod body (1), as shown in FIG. 8. In this manner, user can utilize the mop to clean floor.

Referring to FIG. 9, an alternative embodiment of the present invention is shown, in which the helical grooves (42) of the sleeve (4) are formed to be projected from the inner peripheral wall surface to the outer peripheral wall surface thereof.

Based on the foregoing element constitution and embodiment description, the rotary mop of the present invention has the advantages set forth below when comparing with prior art.

1. In the present invention, the sleeve for actuating the mop section to rotate is formed with helical grooves on its peripheral wall and guiding posts provided on a drive block is engaged in the helical groove. In this manner, when the transmission stem moves the sleeve to rotate through the drive block, the drive block is maintained to be in constant engagement with the peripheral wall of the sleeve throughout the process, hence the rotation action of the sleeve can be kept in good stability so as to avoid improper shaking happened in operation.

2. This invention simply is an assembly comprising an inner and an outer rod bodies, a transmission stem, a sleeve and a drive block such that the effect of rotating the mop section to draining out water content can be achieved. Its structure is simple and its assembly is easy and labor-saving so that the manufacturing cost can be reduced effectively.

Summing up above, the embodiment of the present invention can reach anticipated effect, and the specific configurations disclosed herein have yet not found in the prior art of the same category of product, even has not been opened to the public before application. 

1. A rotary mop, wherein an inner rod body is arranged to be coaxial with an outer rod body, a transmission stem fixed with a ratchet block thereon being internally assembled in said outer rod body, a drive block being further inserted to said transmission stern for engaging with said ratchet block, a baffle piece being disposed on the bottom end of said transmission stem for limiting said drive block, a sleeve which is assembled within said inner rod body having helical grooves provided on the peripheral wall thereof for engagement with guiding posts provided on said drive block, and a mop section being mounted on the bottom end of said sleeve.
 2. The rotary mop as claimed in claim 1, wherein one-way ratchet teeth are formed respectively on said ratchet block and said drive block for mutual engagement.
 3. The rotary mop as claimed in claim 2, wherein said sleeve is formed with at least two helical grooves opposite to each other.
 4. The rotary mop as claimed in claim 3, wherein said helical grooves of said sleeve are formed on the inner peripheral wall surface of said sleeve.
 5. The rotary mop as claimed in claim 3, wherein said helical grooves of said sleeve are formed to be projected from the inner peripheral wall surface to the outer peripheral wall surface.
 6. The rotary mop as claimed in claim 1, wherein said mop section further comprises a coupling rod mounted on the bottom end of said sleeve, a disk body pivotally connected to the bottom side of the coupling rod, and a mop strings mounted on the bottom of said disk body.
 7. The rotary mop as claimed in claim 1, wherein said rotary mop further has a lock member which includes a retaining bush inserted in the bottom edge of the outer rod body, a groove provided on the side of the retaining bush being in coincidence with a groove provided on the side of the outer rod body, a press lever being pivotally coupled in the groove of the retaining bush, and an abutment portion being formed on the end portion within the groove for abutting firmly on the wall surface of said inner rod body.
 8. The rotary mop as claimed in claim 1, wherein said helical grooves of said sleeve are formed on the inner peripheral wall surface of said sleeve.
 9. The rotary mop as claimed in claim 1, wherein said helical grooves of said sleeve are formed to be projected from the inner peripheral wall surface to the outer peripheral wall surface of said sleeve.
 10. The rotary mop as claimed in claim 1, wherein a plug block is assembled in the hollow portion of said inner rod body and a through bore is provided at the center of said plug block for traversing of the transmission stem, said drive block and said ratchet block of said transmission stem being located beneath said plug block.
 11. The rotary mop as claimed in claim 1, wherein said sleeve is formed with at least two helical grooves opposite to each other.
 12. The rotary mop as claimed in claim 11, wherein said helical grooves of said sleeve are formed on the inner peripheral wall surface thereof.
 13. The rotary mop as claimed in claim 11, wherein said helical grooves of said sleeve are formed to be projected from the inner peripheral wall surface to the outer peripheral wall surface of said sleeve. 